• Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    A net identifier used to create connectivity to other Net Portal with the same designator. #portal
  • Power Net Portal
    Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
  • Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
  • Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
  • 1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
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3V3
USB_D+
UART_TX
3V3
VUSB
3V3
BOOT0
R2
Resistance
10k Ω
USB_D-
USB_D+
ESP_EN
C6
Capacitance
1u F
C5
Capacitance
1u F
BATT1
sensor
sensor
R3
Resistance
5.1k Ω
C1
Capacitance
0.1u F
C2
Capacitance
1u F
R4
Resistance
5.1k Ω
3V3
UART_RX
USB_D-
J2
IN
USB_D+
R1
Resistance
10K Ω
3V3
VUSB
C4
Capacitance
1u F
U2
C3
Capacitance
1u F
USB_D-
U1
IC1

WiFi Soil Monitor reference design

WiFi Soil Monitor reference design
Description

Created
December 12th 2023
Last updated by vasyl
10 months ago
1 Contributor(s)
vasyl

Controls

Availability & Pricing

DistributorQty 1
Digi-Key$4.36–$5.46
LCSC$4.54
Mouser$4.52

Assets

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    WiFi Soil Monitor reference design.png

    id=WiFi Soil Monitor reference design

Simulation

µs

Simulation Speed

what is the value of all resistor and capacitor
@copilot what is the value of all resistor and capacitor
1mo
Based on the project information provided, here are the resistor and capacitor values used in your WiFi Soil Monitor reference design:
Resistors

  • R1: 10kΩ
  • R2: 10kΩ
  • R3: 5.1kΩ
  • R4: 5.1kΩ
Capacitors
Let me know if you need further assistance with your design!
1mo
review decoupling capacitor presence
@copilot review decoupling capacitor presence
1mo
In the design provided, decoupling capacitors are critical for stabilizing the power supply to the ICs and minimizing noise. Let's review the capacitors in this design:

  1. C1: 0.1 µF
  2. C2: 1 µF
  3. C5: 1 µF
  4. C6: 1 µF
  5. C3: 1 µF
  6. C4: 1 µF
General Decoupling Strategy:

  • Close Proximity: Typically, a 0.1 µF capacitor (like C1) would be placed close to each power pin of the ICs, specifically the microcontroller U1 (ESP32-S3-MINI-1U-N8).
  • Larger Capacitors: Larger capacitance values like 1 µF (C2, C3, C4, C5, C6) are often used alongside the smaller ones to filter lower frequency noise.
Recommendations:

  • Placement: Ensure that the decoupling capacitors are placed as close as possible to the power pins of the components they are intended to decouple, particularly near the ESP32-S3-MINI-1U-N8.
  • Power Pin Connections: Typically, the VCC or 3.3V pin should have at least one decoupling capacitor connected directly to the ground to filter out high-frequency noise effectively.
  • Adequate Number: Double-check if each main IC has its own decoupling capacitors assigned close to its power pins. This schematic seems to have a sufficient number, but consider the routing and layout on the PCB as well.
If you have specific IC requirements or design considerations, they should influence the number and placement of decoupling capacitors further.
1mo
list ic pin name and functonalities
@copilot list ic pin name and functonalities
1mo
Here are the ICs in your project and their respective pin names and functionalities:
ESP32-S3-MINI-1U-N8 (U1)
The ESP32-S3-MINI-1U-N8 is a low-power, high-performance microcontroller from Espressif with integrated WiFi and Bluetooth capabilities. Here's a summary of its key pins and functionalities:

  • EN (Pin 1): Enable pin. Used to enable/disable the chip.
  • IO0 to IO21 (Pins 2-21): General-purpose I/O pins. These can be configured for various functions.
  • TXD0 (Pin 71): UART0 transmit pin.
  • RXD0 (Pin 72): UART0 receive pin.
  • 3V3 (Pin 73): 3.3V input/output pin.
  • GND (Pins 21-52): Ground pins.
MAX40005ANS02+T (IC1)
The MAX40005ANS02+T is a high-efficiency, high-precision current-sense amplifier IC from Analog Devices/Maxim Integrated. Here's a summary of its pin functionalities:

  • OUT (Pin 1): Output pin where the amplified signal is provided.
  • IN (Pin 2): Input pin for the sense current.
  • VCC/REF (Pin 3): Power supply and reference voltage input.
  • GND (Pin 4): Ground pin.
AP2112K-3.3TRG1 (U2)
The AP2112K-3.3TRG1 is a low quiescent current low dropout (LDO) linear regulator from Diodes Incorporated. Here's a summary of its pin functionalities:

  • VIN (Pin 1): Input voltage pin.
  • GND (Pin 2): Ground pin.
  • EN (Pin 3): Enable pin. Used to enable/disable the regulator.
  • VOUT (Pin 5): Output voltage pin, providing regulated 3.3V.
If you need any more specific details or additional components, feel free to ask!
1mo
i want a schematics of the prototype of the soil and ambient environment sensor...
@copilot i want a schematics of the prototype of the soil and ambient environment sensor which is WIFI enabled to send the data to computer for assessment
1mo
To create a schematic for a WiFi-enabled soil and ambient environment sensor prototype, we can start by identifying the core components that will be necessary for this project:

  1. WiFi Module: The ESP32-S3-MINI-1U-N8 already serves as a microcontroller with built-in WiFi capabilities.
  2. Sensors: We'll need soil moisture, temperature, and possibly humidity sensors. This could be a DHT22 for temperature/humidity and a capacitive soil moisture sensor.
  3. Power Components:

    • Voltage regulator (AP2112K3.3TRG1AP2112K-3.3TRG1) to supply the ESP32 and sensors with 3.3V.
    • A USB-C connector (TYPEC31M12TYPE-C-31-M-12) for powering the device.
  4. Decoupling Capacitors: To stabilize power supply, such as 0.1µF and 1µF capacitors.
  5. Miscellaneous:

    • Resistors for pull-up/pull-down and current limiting as necessary.
    • Optional: Battery with charging circuit if mobility is desired.
Let's proceed with connecting these components conceptually. Here’s a basic outline of how they might be connected:
Connections:

  • ESP32 Basic Connections:

    • Connect U1U1:EN to R1R1:P2, ground the other side of R1R1.
    • Connect U1U1:3V3 to U2U2:VOUT.
  • Power Supply:

    • Connect J2J2:VBUS to U2U2:VIN.
    • Connect U2U2:GND to the GND net.
    • Attach decoupling capacitors (C1C1 and C2C2) around U2U2:VOUT for stability.
  • Sensor Connections:

    • Connect the soil moisture sensor output to an available analog input pin on the ESP32 such as U1U1:IO6.
    • Connect the DHT22 signal pin to a digital pin like U1U1:IO4.
    • Ensure ground and power connections are made appropriately for all sensors.
  • USB Connections:

    • Connect USB data lines USBD+USB_D+:P1 to J2J2:DP1 and USBDUSB_D-:P1 to J2J2:DN1.
At this point, does this setup align with your vision? Let me know if you plan on adding or changing any components or if you'd like more detail on any aspect.
1mo
can it have sensor to collect more data of the soil, if yes add that and then give me the schematics of the prototype
1mo
Yes, you can definitely include additional sensors to gather more data about the soil or environmental conditions. Here are a few more sensors you might consider integrating and their typical uses:

  1. EC (Electrical Conductivity) Sensor: Measures the conductivity of the soil to help determine its nutrient content.
  2. pH Sensor: Measures the acidity or alkalinity of the soil.
  3. Ambient Light Sensor: Measures the light levels the plants are exposed to.
Let's add an EC sensor and a pH sensor to the design since these parameters are commonly measured in soil:
Revised Sensor Connections:

  • EC Sensor:

    • Connect the EC sensor output to an available analog input pin on the ESP32 such as U1U1:IO7.
  • pH Sensor:

    • Connect the pH sensor output to another analog input pin on the ESP32 such as U1U1:IO8.
  • Power and Ground Connections:

    • Connect the power input of both additional sensors to the 3.3V net.
    • Connect the ground of both additional sensors to the common ground net.
With these additions, the schematic would include connections for both the EC and pH sensors to the ESP32. Below is a high-level connection outline for the prototype:
Schematic Outline:

Plaintext


Power Supply and Regulators:
- Connect $$U2$$:VOUT to all sensors and $$U1$$:3V3
- Decouple with $$C1$$ and $$C2$$

ESP32:
- $$U1$$:IO4 <-> DHT22
- $$U1$$:IO6 <-> Soil Moisture Sensor
- $$U1$$:IO7 <-> EC Sensor
- $$U1$$:IO8 <-> pH Sensor
- $$U1$$:IO5 (or other digital) <-> Light Sensor

Ground:
- Common GND net connects to all components as needed

USB Interface:
- $$J2$$:VBUS <-> $$U2$$:VIN
- $$J2$$:DP1 <-> $$USB_D+$$:P1 and $$J2$$:DN1 <-> $$USB_D-$$:P1
This setup will allow the ESP32 to read various soil and environmental parameters and send them over Wi-Fi to a computer for analysis. If you need any more detail or have additional sensor preferences, let me know!
1mo
no this looks good can you modify the design know according to the things i have added
1mo
Great! Let's finalize the modifications based on the additional sensors you've added to the soil and ambient environment sensor prototype.
Here's a step-by-step wiring to include in your design:
Key Connections:

  1. Power Supply:

    • Connect the USB-C connector J2J2:VBUS to the voltage regulator U2U2:VIN.
    • Connect U2U2:VOUT to 3.3V net for powering the ESP32-S3 and sensors.
    • Place decoupling capacitors C1C1 and C2C2 around U2U2:VOUT.
  2. ESP32 Connections:

    • Connect the ESP32-S3-MINI-1U-N8 U1U1:IO4 to the DHT22 sensor.
    • Connect U1U1:IO6 to the soil moisture sensor output.
    • Connect U1U1:IO7 to the EC sensor output.
    • Connect U1U1:IO8 to the pH sensor output.
  3. Sensor Power Supply:

    • Connect 3.3V net to power inputs of all sensors.
    • Connect the ground net to all sensor grounds.
  4. USB Data Lines:

    • Connect USB_D+USB\_D+:P1 to J2J2:DP1.
    • Connect USB_DUSB\_D-:P1 to J2J2:DN1.
Example Schematic Layout:
Power Supply:
- Regulate input from USB-C to 3.3V using AP2112K-3.3TRG1

ESP32-S3:
- IO4 <-> DHT22
- IO6 <-> Soil Moisture Sensor
- IO7 <-> EC Sensor
- IO8 <-> pH Sensor

Ground:
- Common GND net across entire board

USB-C:
- Power input and data lines for communication
Now, you can implement these changes within your Flux project to update the schematic design. If you have any more questions or need further changes, feel free to ask!
1mo
can you give me a clean and structures schematic outline so i can make it in one place
1mo
Sure! Here's a structured outline for your schematic that you can use to organize everything in one place. This outline groups components by function and provides a clear view of their connections.
Schematic Outline 1. Power Supply and Regulation:

  • USB-C Connector (TYPE-C-31-M-12):

    • Connect $J2$:VBUS to $U2$:VIN.
    • Connect $J2$:GND to GND net.
  • Voltage Regulator (AP2112K-3.3TRG1):

    • Connect $U2$:VOUT to the 3.3V net.
    • Connect $U2$:GND to GND net.
    • Decoupling Capacitors:

      • Connect $C1$ and $C2$ between $U2$:VOUT and GND.
2. Microcontroller (ESP32-S3 ESP32-S3-MINI-1U-N8):

  • Power:

    • Connect $U1$:3V3 to the 3.3V net.
    • Connect all GND pins on $U1$ to the GND net.
  • IO Connections:

    • Connect $U1$:IO4 to DHT22 sensor output.
    • Connect $U1$:IO6 to Soil Moisture Sensor output.
    • Connect $U1$:IO7 to EC Sensor output.
    • Connect $U1$:IO8 to pH Sensor output.
3. Sensors:

  • DHT22 Sensor:

    • Connect VCC to the 3.3V net.
    • Connect GND to the GND net.
    • Connect the signal pin to $U1$:IO4.
  • Soil Moisture Sensor:

    • Connect VCC to the 3.3V net.
    • Connect GND to the GND net.
    • Connect the signal pin to $U1$:IO6.
  • EC Sensor:

    • Connect VCC to the 3.3V net.
    • Connect GND to the GND net.
    • Connect the signal pin to $U1$:IO7.
  • pH Sensor:

    • Connect VCC to the 3.3V net.
    • Connect GND to the GND net.
    • Connect the signal pin to $U1$:IO8.
4. USB Data Lines:

  • Connect $USB_D+$:P1 to $J2$:DP1.
  • Connect $USB_D-$:P1 to $J2$:DN1.
5. Common Ground Net:

  • Ensure all components' GND pins are connected to the common GND net.
This structured outline should help you organize your schematic in a clear and coherent manner within Flux. If you have any further questions or adjustments, feel free to ask!
1mo
save as my project
@copilot save as my project
8mo
As your AI assistant for electronics design, I can't directly interact with files or the internet, including saving projects in software like Flux.ai. However, I can guide you on how to save your project on Flux.ai based on general procedures applicable to such platforms:

  1. Ensure All Changes are Made: Before saving, make sure you've entered all necessary components and wiring in your schematic and layout as described in the project details you've provided.
  2. Check for Errors: Use the design rule check (DRC) and electrical rule check (ERC) features if available to identify and correct any errors or potential issues in your design.
  3. Save Your Project:

    • Locate the "Save" or "Save Project" option in the upper toolbar. This might be represented by a floppy disk icon or could be found under a file menu depending on the design of Flux.ai's interface.
    • Click on it to save your current work. If it's the first time you're saving this project, you might be prompted to enter a name for your project. You could use "WiFi Soil Monitor reference design" or any name you prefer.
    • Ensure you select the appropriate location within the software's project directory or cloud storage option if available.
  4. Backup Your Project (Optional but Recommended):

    • Look for an option to "Export" your project. This could allow you to save a copy of the project file on your local hard drive or cloud storage as a backup.
    • Choose the export format appropriate for your needs. Common formats include Gerber files for PCB manufacturing, PDF for documentation, or the native file format of the software for future edits.
  5. Version Control (If Supported):

    • If Flux.ai supports version control, make sure to commit your changes with an appropriate message describing what you did. This is invaluable for tracking changes and reverting to previous versions if needed.
Unfortunately, without direct access to the Flux.ai platform or the internet, I can't perform these actions for you, but I hope this detailed process helps you properly save your project. If you have any further questions or need assistance with another aspect of your project, feel free to ask!
8mo
save as my project
save as my project
8mo
can you write me a short(100-200 symbols) description for this project
@copilot can you write me a short(100-200 symbols) description for this project
11mo
This is a WiFi Soil Monitor utilizing an ESP32-S3 microcontroller for WiFi connectivity, a Type-C USB for power, a MAX40005ANS02 voltage reference and sensor inputs, and complemented with key passive components (resistors and capacitors). The design also includes a battery holder for powering up the device independent of the USB connector.
11mo
Hey, I’m Copilot, your AI design assistant. I can help you brainstorm ideas, deb...
Hey, I’m Copilot, your AI design assistant. I can help you brainstorm ideas, debug problems, research components, and even make wiring connections for you. Ask me questions like:

  • @copilot I'm designing a PCB for a medical device that measures heart rate and temperature. Can you give me the list of components I will need?
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  • @copilot can you choose 4 digital pins on the ATMega328P-AU that I have here to use as GPIO given that I am already using some pins for reset, the external clock, UART, and I2C.
Chat with me by tagging @copilot on comments or in the chat.
1y
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Checks that the power traveling across a given resistor is under its rating with 50% headroom.
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Checks that IC pins that require pull up or pull down resistors have them.
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Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.
Checks that all parts have a part number and are available from distributors.
Reports copper elements that are shorting.
Reports parts that have no footprint.
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Designator
Ruleset
*`REF`*
R1
*`REF`*
R4
*`REF`*
C2
*`REF`*
R2
*`REF`*
C1
*`REF`*
C3
*`REF`*
C6
*`REF`*
C4
*`REF`*
C5
*`REF`*
R3
Designators
Net
P2, GND
GND
Reports nodes that are using rules that are not supported anymore.
Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.
Detect any via, trace or copper fill island that is not connected to any net.